| 摘要 |
A scroll compressor is provided. The scroll compressor may include a fixed scroll having a fixed wrap and a plurality of first key recesses, an orbiting scroll engaged with the fixed scroll to define a compression chambers and having an orbiting wrap and a plurality of second key recesses, the orbiting scroll performing an orbiting motion with respect to the fixed scroll, a drive having a rotation shaft coupled to the orbiting scroll such that one end portion thereof overlaps the orbiting wrap in a lateral direction, and an Oldham ring having a plurality of first and second keys coupled to the plurality of first key recesses and the plurality of second key recesses, respectively. The plurality of second keys may at least temporarily protrude from the plurality of second key recesses in a radial direction during the orbiting motion. Further, the plurality of second key recesses and the plurality of second keys may be disposed to obtain maximum contact areas therebetween at a moment of start of discharging. |
| 主权项 |
1. A scroll compressor, comprising:
a fixed scroll comprising a fixed wrap, and a plurality of first key recesses; an orbiting scroll comprising an orbiting wrap engaged with the fixed wrap of the fixed scroll to define compression chambers, and a plurality of second key recesses, wherein the orbiting scroll that performs an orbiting motion with respect to the fixed scroll; a drive comprising a rotational shaft coupled to the orbiting scroll, such that a portion of the rotational shaft extends into the orbiting wrap; and an Oldham ring comprising a plurality of first keys and a plurality of second keys formed on one surface of the Oldham ring and coupled to the fixed scroll and the orbiting scroll, respectively, by being inserted into a plurality of first key recesses, into which the plurality of first keys is inserted, formed in the fixed scroll, and a plurality of second key recesses, into which the plurality of second keys is inserted, formed in the orbiting scroll, wherein each of the plurality of first key recesses comprises:
a first portion formed at an inner circumferential surface of the side wall and extended in an axial direction of the fixed scroll; anda second portion formed at an upper surface of the orbiting scroll support and extended in a radial direction of the fixed scroll, wherein a length of the first portion in the radial direction is less than an orbiting radius of the orbiting scroll, wherein a lower portion of each of the plurality of first keys remains inserted in the second portion of the corresponding first key recess during the orbiting motion of the orbiting scroll, and wherein an outer portion of each of the plurality of first keys is inserted into or separated in a radial direction from the first portion of the corresponding first key recess during the orbiting motion of the orbiting scroll, wherein the plurality of second key recesses and the plurality second keys are formed at position where the plurality of second keys are maintained in an inserted state into the plurality of second key recesses so as not to protrude from the plurality of second key recesses at at least one time point within a duration of a time from a start of to end of a discharge cycle. |
